MATLAB C++ Math Library Reference

Assignment Operators
mwArray &operator=(const mwArray&);
The final operator, =, is the assignment operator. C++ requires that the
assignment operator be a member function. Like the copy constructor, the
assignment operator does not actually make a copy of the input array, but
rather references (keeps a pointer to) the input array’s data; this is an
optimization made purely for efficiency, and has no effect on the semantics of
assignment. If you write A = B andthenmodifyB, the values in A will remain
unchanged.
User-Defined Conversion
There is only one user-defined conversion: from an mwArray to a
double-precision floating-point number. This conversion function only works if
the mwArray is scalar (1-by-1) and noncomplex.
operator double() const;
Memory Management
Overloading the operators new and delete provides the necessary hooks for
user-defined memory management. The MATLAB C++ Math Library has its
own memory management scheme.
If this scheme is inappropriate for your application, you can modify it.
However, you should not do so by overloading new and delete, becausethe
mwArray class already contains overloaded versions of these operators.
void *operator new(size_t size)
void operator delete(void *ptr, size_t size)
Array Size
In MATLAB, the size() function returns the size of an array as an array. The
MATLAB C++ Math Library provides a corresponding version of size() that
also returns an array. Because this C++ version allocates an array to hold just
two integers, it is not efficient. The mwArray Size member functions below
return the size of an array more efficiently.
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